Methods and systems for treatment of prolapse

ABSTRACT

Described are implants, tools, and related methods, for use in pelvic surgery to treat conditions such as prolapse, including embodiments of methods that involve a tissue path above the arcus tendineus.

PRIORITY CLAIM

This application is a continuation of U.S. application Ser. No.14/025,988, filed Sep. 13, 2013, which is a continuation of U.S.application Ser. No. 11/989,256, filed Feb. 24, 2009, now U.S. Pat. No.8,535,217, which claims the benefit from International No.PCT/US2006/028828, which was granted an International Filing date ofJul. 25, 2006, which in turns claims priority under 35 USC §119(e) fromU.S. Provisional Patent Application Ser. No. 60/702,704, filed on Jul.26, 2005, by James E. Cox and titled CONNECTORLESS IMPLANT SYSTEM;60/702,705, filed on Jul. 26, 2005, by Guillermo Wiley Davila et al. andtitled TRANSVAGINAL SYSTEM FOR APICAL SUPPORT; and 60/702,700, filed onJul. 26, 2005, by James E. Cox et al. and titled METHODS AND SYSTEMS FORTRANSVAGINAL TREATMENT OF PROLAPSE, which applications are incorporatedherein by reference in their entireties.

FIELD OF THE INVENTION

Described herein are features of surgical articles, surgical methods,and surgical tools, for use in the field of pelvic surgery, e.g., toinstall support devices for use in treating vaginal prolapse.

BACKGROUND

Medical conditions involving pelvic prolapse are conditions of greatimportance. An aging population can be prone to such conditions. Pelvicprolapse develops when intra-abdominal pressure, muscle failure, asurgical procedure such as a hysterectomy, or other factors, allow orcause a tissue of a pelvic organ such as the vagina to become displaced.Within the general category of pelvic organ prolapse, specific typesinclude vault prolapse (apical); cystocele (anterior); rectocele andenterocele (posterior); and combinations of these.

Various techniques have been designed to correct or ameliorate prolapseand prolapse symptoms, with varying degrees of success. Nonsurgicaltreatments involve measures to improve the factors associated withprolapse, including treating chronic cough, obesity, and constipation.Other nonsurgical treatments may include pelvic muscle exercises orsupplementation with estrogen.

A variety of surgical procedures have also been attempted for thetreatment of prolapse. See for example U.S. patent application Ser. No.10/834,943, entitled “Method and Apparatus for Treating Pelvic OrganProlapse,” filed Apr. 30, 2004, and Ser. No. 10/306,179, entitled“Transobturator Surgical Articles and Methods,” filed Nov. 27, 2002, theentireties of each of these two patent applications being incorporatedherein by reference. Such patent applications describe articles andmethods for treating pelvic organ prolapse by use of a support memberfor supporting specific tissue. Application Ser. No. 10/834,943, forexample, discusses a support member that includes a central tissuesupport portion and two end (extension) portions, and related methodsfor implantation. The central tissue support portion can be attached attissue of a vaginal vault. The end portions of the support member arethen positioned through respective tissue pathways extending to anexternal incision at the perirectal region, to place the support memberin a therapeutic position.

Methods of supporting vaginal tissue to treat vaginal prolapse can bedifferentiated in terms of the location of implanted materials oranatomical tissue used to support the vaginal tissue. One current methodof treating posterior vaginal tissue prolapse involves the use of anintravaginal slingplasty (“IVS”) tunneler device. Methods of treatingprolapse using an IVS tunneler involve supporting vaginal tissue byattaching a portion of a surgical implant to vaginal tissue and passinganother portion of the implant through the iliococcygeus muscle belowthe white line, for support. A different technique, known assacrospinous ligament fixation, involves supporting vaginal tissue byattachment to the sacrospinous ligaments. Both of these methods havedrawbacks, such as not providing completely correct anatomical supportfor the vagina. Attaching vaginal tissue to the sacrospinous ligamentscan pull the vagina down toward the pelvic floor. The use of an IVStunneler to pass an implant through the iliococcygeous muscle allows forsupport from a location higher up in the anatomy, but still not ananatomically correct location.

SUMMARY

The invention relates to transvaginal methods of treating posteriorvaginal prolapse, and surgical devices. Embodiments relate to methods,tools, and surgical systems useful for transvaginal placement of animplant (e.g., a synthetic mesh implant or an implant that contains acombination of synthetic and biologic materials) in a position tosupport posterior tissue of the vagina, wherein the implant passesbi-laterally through opposing tissue paths that each include passage ata region of the arcus tendineus, e.g., near the ischial spine.

Some embodiments of methods may involve an external incision at aperirectal region, to place an extension portion of an implant, whilealternate embodiments to not require and can avoid an external incision.The implant can be introduced to the pelvic region transvaginally;transvaginally attached to tissue of the vaginal vault for support; andthen distal ends of the implant can be passed bilaterally near a regionof each arcus tendineus (e.g., near both of the patient's ischialspines), as described, using a transvaginal procedure.

The tissue path through a region of the arcus tendineus can result inbenefits including proper anatomical positioning of the supportedvaginal tissue, and fixation of the implant in tissue near the arcustendineus due to tissue ingrowth. Additionally, exemplary transvaginalmethods can allow for the location of extension portions to be adjustedby movement of the extension portion extending through the tissue path,e.g., through a tissue path that surrounds the arcus tendineus.

According to certain embodiments an implant can be used to treat vaginalvault prolapse. The support member can include a tissue support portionthat can be attached to tissue of the vaginal vault and two end portionsattached to the tissue support portion. The implant can be used to placevaginal tissue in a therapeutic position for treatment of vaginal vaultprolapse by attaching the tissue support portion to tissue of thevaginal vault, and attaching the end portions to separate locations forpositioning or supporting the prolapsed tissue.

Exemplary implants, methods, tools, and systems provide anatomicalsupport to treat vaginal prolapse (e.g., vaginal vault prolapse,enterocele, and rectocele) by using a supportive implant attached tovaginal tissue, that passes from posterior vaginal tissue to a locationin a region of the arcus tendineus (“white line”), e.g., near theischial spine. The implant can pass from the point of attachment at thevaginal tissue, through a tissue path that includes passage throughtissue at the immediately anterior edge of the ischial spine and at thelevel of the ischial spine near the connection of the ischial spine tothe arcus tendineus, and above or below the arcus tendineus.

As used herein, the terminology that refers to positions “above” thewhite line refers to anatomy that includes the obturator internusmuscle, and references to positions “below” the white line refer toanatomy that includes the iliococcygeus muscle. Stated differently,embodiments of the invention involve a tissue path that is defined toinclude a curved-rectangular-shaped area above and below the curvedarcus tendineus. The region includes a specific region having a heightextending from 2 inches above to 2 inches below the arcus tendineus, anda length starting at the ischial spine and extending 3 centimeters tothe anterior of the ischial spine.

In one aspect, the invention relates to a method of supporting posteriorvaginal tissue. The method includes: providing an implant comprising atissue support portion and an extension portion extending from thetissue support portion, creating a vaginal incision, transvaginallycontacting the support portion with posterior vaginal tissue,transvaginally producing a tissue path between the position of thetissue support portion and a region of the arcus tendineus, andtransvaginally extending the extension portion through the tissue path.

In another aspect, the invention relates to a pelvic implant assemblythat includes: an implant comprising supportive portions comprising atissue support portion, and elongate extension portions extending fromof the tissue support portion; and an insertion tool at a distal end ofan extension portion, the insertion tool comprising a curved portionsized and shaped to be used in a transvaginal procedure to define atissue path that exits the pelvic floor region in a region of the arcustendineus, partially extends around an arcus tendineus, and re-entersthe pelvic floor.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates anatomy relevant to the invention, including specificpelvic anatomy.

FIG. 2 illustrates anatomy relevant to the invention, including specificpelvic anatomy.

FIG. 3 illustrates anatomy relevant to the invention, including specificpelvic anatomy, and also exemplifies an implant according to theinvention.

FIG. 4 illustrates an exemplary system of the invention including anexemplary tool and an exemplary implant with attached dilators.

FIG. 4A is an end view of an exemplary tool.

FIG. 4B is an end view of an exemplary tool with attached dilator of animplant.

FIG. 5 illustrates an exemplary implant according to the invention.

FIG. 6 illustrates an exemplary implant assembly according to theinvention, including an implant and attached insertion tools.

FIG. 7 illustrates an exemplary implanted pelvic implant according tothe invention.

FIG. 7A illustrates an exemplary implanted pelvic implant according tothe invention.

FIG. 8 illustrates an exemplary implanted pelvic implant according tothe invention.

FIG. 9 illustrates an exemplary implanted pelvic implant according tothe invention.

FIG. 9A illustrates an exemplary implanted pelvic implant according tothe invention.

FIG. 10 illustrates an exemplary kit or system according to theinvention, including a Desehampes Needle, an implant, and a tunnelerdevice.

DETAILED DESCRIPTION

According the invention, surgical implants can be used to treatconditions of vaginal prolapse. Also contemplated herein are variousfeatures of surgical implants, surgical tools, systems that includeimplant and tool, and surgical methods. The implants and tools areuseful for treating conditions of vaginal prolapse including vaginalvault prolapse, but will also be appreciated to be useful for treatingother conditions of pelvic tissue prolapse.

In general, the invention relates to methods, tools, and systems usefulfor attaching one portion of a surgical implant to pelvic tissue such asvaginal tissue and passing another portion of the implant through atissue path that includes tissue in the region of the arcus tendineus or“white line,” preferably near the ischial spine.

The location of this tissue path passing through a region of the arcustendineus or “white line” can result in improved anatomical correctnessof the position of supported vaginal tissue. The location in the regionof the white line can provide a proper axis for supported vaginaltissue, higher than support provided by alternate methods of treatingvaginal prolapse such as those that involve sacrospinous ligamentfixation or use of the IVS tunneler, which alternate methods wouldtypically produce a tissue path more directly through the buttocks. Alocation in the region of the arcus tendineus, e.g., above the arcustendineus, does not cause vaginal tissue to be pulled down toward thepelvic floor as with attachment to the sacrospinous ligaments. Also, abetter vaginal length can result compared to the use of an IVS tunneler,because the support is located closer to the ischial spine.

Also advantageously, a tissue path can be one that wraps around theoutside portion (relative to the region of the pelvic floor) of thearcus tendineus, meaning that an extension portion of an implant exitsthe pelvic region near the arcus tendineus (either above or below thearcus tendineus), continues along a path that wraps or bends around thewhite line, then re-enters the pelvic region on the other side of thewhite line; i.e., below or above the arcus tendineus, whichever isopposite of the direction of entry. The tissue path can include arelatively sharp turning radius to place the extension portion near thearcus tendineus. By extending around the white line, the extensionportion contacts tissue that surrounds the white line and can becomeingrown into that tissue. This ingrowth can provide fixation of theextension portion into the tissue. During the procedure the placement ofthe extension portion and implant can be adjusted by manipulating theextension portion from the pelvic region side, after passing theextension portion around the arcus tendineus. Specifically, theextension portion will include two portions within the pelvic region,and those two portions can be manipulated to adjust the position of oneor more of the extension portion, a central portion of an implant, andtissue attached to a central portion of the implant.

FIG. 1 schematically illustrates a top view of anatomy of vagina andnearby tissue. Vagina 2 and cervix 4 are schematically illustrated inrelation to arcus tendineus or “white line” 6, ischial spine 8, anduterosacral ligaments 10. An exemplary region of a tissue path accordingto the invention, a region of the arcus tendineus, 6, is illustrated asan approximately-rectangular regions 12 (shown by dashed lines—one oneach side of the pelvic region). Each region 12 includes area above andbelow arcus tendineus, 6, starting at ischial spine 8 and extending inan anterior direction along the length of the arcus tendineus. Althoughobturator internus and iliococcygeus muscles are not shown in FIG. 1,region 12 is located to include or be adjacent to the obturator internusmuscle (above the white line) and the iliococcygeus muscle (below thewhite line); a tissue path that passes through region 12 also passesthrough obturator internus muscle or iliococcygeous muscle.

A preferred example of a region of the arcus tendineus, e.g., asillustrated as region 12, can be defined as a curved-rectangular-shapedarea defined to include a region that extends 2 centimeters above and 2centimeters below (e.g., 1 centimeter above and 1 centimeter below) thearcus tendineus and that has a length starting at the ischial spine andextending in an anterior direction along the arcus tendineus, e.g., adistance of up to about 3 centimeters anterior of the ischial spine(e.g., up to about 1 centimeter anterior to the ischial spine). Aparticularly preferred tissue path can be very near or as close aspossible to the ischial spine and either above or below the arcustendineus, such as through tissue at the immediately anterior edge ofthe ischial spine and at the level of the ischial spine near theconnection of the ischial spine to the arcus tendineus; dimensions canbe 0.5 or 1 centimeter above or below the arcus tendineus, and 0.5 or 1centimeter anterior to the ischial spine along the arcus tendineus.

FIG. 2, a top view of pelvic features, schematically illustratessacrospinous ligament 11, arcus tendineus 6, ischial spine 8, sacrum 16,and exemplary tissue path 14 illustrated as circular line 14 passingaround an outside of arcus tendineus 6, i.e., wrapping around arcustendineus 6. This wrapped configuration places an implant material nearthe arcus tendineus, e.g., in surrounding tissue such as surroundingmuscle tissue, which allows for ingrowth of tissue into the implantmaterial located at path 14, and fixation of that implant material atthat location. FIG. 2 illustrates an example of a circular tissue path,14, that passes above arcus tendineus 6 near (e.g., within 2centimeters, such as within 1 or 0.5 centimeters) ischial spine 8. Path14 includes an arrow showing a direction of a needle (not shown)following path 14, starting below arcus tendineus 6, exiting the pelvicregion by passing below the arcus tendineus and through theiliococcygeus muscle (levator ani) (not shown), passing around arcustendineus 6, and then passing back into the pelvic region by passingabove the arcus tendineus 6 through the obturator interims muscle (notshown).

FIG. 2 illustrates what can be referred to as a “bottom-up” techniquefor passage of an end portion or extension portion of implant materialthrough a region of the arcus tendineus. The bottom-up method inserts adistal end of an extension portion of an implant below the arcustendineus and through the iliococcygeus muscle; the implant extensionportion distal end is then passed around the back or outside of the anustendineus to a location above the arcus tendineus, and then through thetissue above the arcus tendineus (i.e., through the obturator internusmuscle) where the implant end then re-enters the region of the pelvicfloor.

Alternately, a tissue path as illustrated in FIG. 2 may be producedusing a “top-down” method. As opposed to the bottom-up methodspecifically illustrated at FIG. 2, a top-down method inserts theimplant extension portion distal end above the arcus tendineus throughthe obturator internus muscle, wraps the extension portion around thearcus tendineus, then the extension portion re-enters the region of thepelvic floor below the arcus tendineus by passing through theiliococcygeus muscle. A top-down method may be a preferred methodbecause top-down methods allow a needle tip to extend away from thebladder when passing through the obturator internus muscle. In atop-down method, the implant extension distal end, after wrapping aroundthe arcus tendineus and re-entering the pelvic floor region (i.e.,through the iliococcygeus muscle), may be led through one of varioustissue path options. For example, the end extension may re-enter thepelvic floor region and then extend to and terminate at a locationinternal to the pelvic region. The distal end of the extension portioncould be sutured, e.g., using a “stay suture,” to maintain placementwithin the pelvic floor. This method advantageously does not require anexternal incision for manipulating the extension portion. Anothervariation of the method is to use a tissue path as mentioned, but thatcontinues through the pelvic region and then to and through an externalincision such as through the buttock and then through an externalincision, wherein the extension portion can be adjusted and cut off to adesired length.

As illustrated in FIG. 3, embodiments of the invention involve the useof a single mesh bridge (e.g., a uniform mesh strip) implant betweentissue paths described herein, above the white line and optionally andpreferably near the ischial spines, to repair vaginal vault prolapse.Optionally, if desired, a mesh strip implant may use a modified middlesection with denser construction (e.g., use of a biologic material for amiddle section, 22) to hold sutures better than standard mesh. A vaginalvault repair results in an anatomically correct “pear” shape to thedistal vagina, with the vaginal vault correctly positioned between theischial spines.

Referring to FIG. 3, this figure illustrates a top view of the anatomyof FIG. 1 including a mesh support implant 20 installed according to anexemplary tissue path described herein. Implant 20 includes central(tissue support) portion 22 sutured to the apex of vagina 2 by sutures18 (designated as “x”s). Implant 20 also includes two end portions, 24and 26, extending bilaterally from tissue support portion 22. Each ofend portions 24 and 26 is illustrated to pass from apex of vagina 2,laterally toward arcus tendineus 6. Each end portion 24 and 26 passesabove arcus tendineus 6, near ischial spine 8—i.e., through tissue atthe immediately anterior edge of ischial spine 8 and at the level of theischial spine near the connection of the ischial spine to the arcustendineus—through the obturator internus muscle (not shown), aroundarcus tendineus 6. In FIG. 3, extension portions 24 and 26 are shown tocontinue through tissue below the arcus tendineus (i.e., through theiliococcygeus muscle, not shown) and back into the pelvic floor region.

Referring still to FIG. 3, sections 21 and 23 of end portions 24 and 26are located internal to the pelvic floor region. During a surgicalimplantation procedure, these portions can be manipulated by graspingmanually or with a surgical instrument such as a forceps, needle-passer,or pliers, to adjust the position of end portions 24 and 26, as well assupport portion 22 and overall implant 20.

The invention also relates to implants, tools, and kits, that may beused according to methods described herein, and that may also be usefulfor treating conditions other than vaginal prolapse, e.g., other typesof pelvic tissue prolapse. In general, implants that may be usefulaccording to methods described herein can include those types ofimplants known for use to treat vaginal prolapse, and similar implants.Exemplary implants can be in the form of a biocompatible mesh materialsuch as a mesh strip made of a single uniform length of mesh, or,alternately, can be a multi-portion implant that includes a supportportion for attachment to pelvic (e.g., vaginal) tissue connected to endportions or extensions. Embodiments include a length of mesh strip ofgenerally uniform thickness and width, as well as implants havingdistinct or discernible sections of different sizes, materials, ormechanical properties. Other exemplary embodiments include a tissuesupport portion of a biologic material and extension portions ofsynthetic mesh material.

Exemplary implants may be a mesh strip such as mesh strips andmulti-component implants illustrated in the accompanying figures. Asillustrated, exemplary implants may consist of a strip of uniformthickness and width, as well as implants that include portions ofdifferent sizes, shapes, and materials, for connecting to tissue and forsupporting tissue. A tissue support portion may be of a biologicmaterial or a synthetic (e.g., mesh) material. Attached to a tissuesupport portion can be one, two, or more, extensions (or “extensionportions” or “end portions”) shaped and sized to extend from the pointof attachment with the support portion of the implant to anotherlocation of the anatomy. Each extension may be an elongate material thatis biologic or synthetic, e.g., an elongate synthetic mesh attacheddirectly to the support portion.

Various implant products are available commercially for treatingprolapse conditions, e.g., from American Medical Systems Inc., ofMinnetonka Minn. Examples of such products include: the line of PERIGEE™products for treatment of cystocele, from American Medical Systems,Inc.; the APOGEE™ product for treating enterocele, rectocele, andvaginal vault prolapse, also available from American Medical SystemsInc.; as well as products for CAPS procedures(combined-prolapse-repair-with sling) for treating cystocele and stressurinary incontinence.

Examples of implants that can be used or modified for use according tothe present description are described, e.g., in US application number2004/0039453, “Pelvic Health Implants and Methods,” (describing implantsuseful for treating multiple pelvic disorders) having Ser. No.10/423,662, and filed on Apr. 25, 2003; US application number2005/0245787, “Method and Apparatus for Treating Pelvic Organ Prolapse,”having Ser. No. 10/834,943, and filed on Apr. 30, 2004; U.S. patentapplication Ser. No. 11/347,063, filed Feb. 3, 2006, entitled ”PelvicImplants and Related Methods; U.S. patent application Ser. No.11/398,368, filed Apr. 5, 2006, entitled “Articles, Devices, and Methodsfor Pelvic Surgery”; and U.S. patent application Ser. No. 11/243,802,filed Oct. 5, 2005, entitled “Method for Supporting Vaginal Cuff” theentireties of each of these being incorporated herein by reference.

Exemplary implants can include a tissue support portion for placing incontact with tissue to be supported, and one or more “extension”portions (or “end portions”), the tissue support portion being useful tosupport pelvic tissue such as vaginal tissue (anterior, posterior,apical, etc). The tissue support portion can be sized and shaped tocontact the desired tissue when installed. A tissue support portion thatis located between two or more extension or end portions is sometimesreferred to herein as a “central support portion.”

Dimensions of an implant or a portion of an implant can be as desiredand useful for any particular installation procedure, treatment, orcombination of treatments, and to support a specific tissue, type oftissue, or multiple tissues (e.g., bladder, vagina, urethra, etc.).Exemplary dimensions can be sufficient to allow the tissue supportportion to contact tissue to be supported and to allow one or moreextension portion to extend from the tissue support portion to a desiredanatomical location, e.g., through a tissue path through a region of thearcus tendineus, as described.

A tissue support portion can be sized and shaped to an overall area forcontacting tissue being supported, and can depend on the condition beingtreated, e.g., vault prolapse, enterocele, rectocele, or a combinationof these. The tissue support portion is of sufficient size and shape toat least partially surround or otherwise be in contact to supportprolapsed tissue. A tissue support portion can optionally be of a widththat is greater than a width of an extension portion. An increased widthof a tissue support portion may take the form of one or two lateralextensions that extend the width of the tissue support portion in atleast one direction, beyond the width of an extension portion. The shapeof the tissue support portion can also be varied, depending on theintended application and treated condition, and may be square, rounded,angled, rectangular, etc. Exemplary widths of a tissue support portion,measured laterally (i.e., perpendicular to lengths of extensionportions), can be in the range from 1 to 8 centimeters, such as from 2to 6 centimeters. Generally, exemplary lengths of a tissue supportportion can be up to 8 centimeters, such up to about 4 centimeters.

Extension portions are elongate pieces of material that extend from thetissue support portion and are integral with or connected to the tissuesupport portion. Extension portions are useful to attach to otheranatomical features and thereby provide support for the tissue supportportion and the supported tissue. One or multiple (e.g., one, two, orfour) extension portions can extend from the tissue support portion aselongate “ends,” “arms,” or “extensions,” that are used to attach toother anatomy. Extension portions extending from a tissue supportportion in contact with posterior vaginal tissue, can be extendedthrough a tissue path as described herein, passing through a region ofthe arcus tendineus such as above the arcus tendineus.

A width of an extension portion can be a width useful for implanting theimplant and for providing desired strength and fixation propertiesduring and after implantation and optional tensioning of the sling.Typical widths of an extension portion can be in the range from 0.5 to 3centimeters, e.g., from 0.8 to 2 centimeters, such as from 0.8 to 1.5centimeters. Extension portions can typically have a uniform orsubstantially uniform width along the length, normally not varying bymore than about 25 percent of the average width along the length of theinstalled portion of the extension portion. A length of an extensionportion can be as desired to extend from a tissue support portioninstalled at a desired pelvic tissue location, through a tissue path ofa desired length, e.g., from a tissue support portion installed at avaginal tissue, to a region above the arcus tendineus, optionally backinto the pelvic cavity, and optionally further passing through thebuttock to an exterior incision external to the buttock.

An example of a particular type of pelvic implant is the type thatincludes supportive portions including or consisting of a centralsupport portion and two elongate extension portions extending from thecentral support portion. The term “supportive portions” refers toportions of an implant that function to support tissue after the implanthas been implanted, and specifically includes extension portions and atissue support portion, and does not include optional or appurtenantfeatures of an implant such as a sheath, dilator, attached or engagedinsertion tool, or other connected tools or implantation aids. FIGS. 4,5, and 6, for example, illustrate implants having supportive portionsconsisting of a tissue support portion and two elongate extensionportions.

According to certain embodiments of implants, various features can beincorporated into a useful implant to facilitate installation of adevice during a surgical procedure. For instance, a suture may beattached to an implant, along a length of an extension portion, for usein adding tension or in positioning the implant or a portion (e.g.,extension) of the implant. Alternately or in addition an exemplaryimplant may include a removable sheath such as a flexible plastic,transparent elongate tube that can cover extension portions of animplant to allow a surgeon to apply tension or pressure on the sheath toindirectly apply pressure or tension to the extension portion, forplacing or adjusting the location of the implant.

An implant can be installed according to the present description by useof standard surgical instruments, or by use of instruments that aredesigned or particularly useful for placing an extension portion througha tissue path as described, e.g., in a region of the arcus tendineus,such as above the arcus tendineus. Generally, an insertion tool mayinclude a portion for creating a tissue path, that portion being curvedor straight, with exemplary embodiments including a curved portion of asized and shaped (e.g., length and curvature) that will be useful toform a tissue path as described herein, in a region of the arcustendineus and preferably wrapping around the arcus tendineus, to lead adistal end of an extension portion at least partially through a tissuepath that wraps around the arcus tendineus. An exemplary length(measured as the circumferential arclength of the curved portion) of acurved portion can be from 3 to 5 centimeters, and an exemplary radiusof curvature of a curved portion may be, e.g., in the range from 0.5 to1.5 centimeters.

Exemplary geometric forms of a curved portion can be a form of a partialcircle, such as a half circle. The partial circle is arranged to be in aplane that does not include a line defined by a longitudinal axis of ashaft. With this configuration, the curved portion can be located todefine a partial circle having the shaft of the tool (and a longitudinalaxis of the shaft) as a center of the circle. The curved portion canthen engage tissue and be rotated around the shaft and longitudinal axisby rotation of the handle about the longitudinal axis, to cause thecurved portion to define a circular tissue path. The partial circle canhave a relatively uniform radius of curvature, such in the range from0.5 to 1.5 centimeters (e.g., from 0.7 to 1.2 centimeters), extendingover an arclength that traverses from 90 to 270 degrees, e.g., from 170to 190 degrees, about 180 degrees. This arclength, when measured as thecircumference of the partial circle, can be, e.g., from 3 to 5centimeters.

An example of a useful insertion tool is a small curved needle attachedat a distal end of an extension portion, which can be manipulated usinga surgical instrument such as a forceps or pliers. The small curvedneedle can consist of a single length of curved needle material, e.g.,metal or plastic, attached at a distal end of the extension portion. Theneedle may be considered to be a two-dimensional form, in that it thecurvature of the needle can define a two-dimensional plane. The smallcurved needle may be manipulated transvaginally and passed throughtissue in a region of the arcus tendineus, preferably near the ischialspine. The needle is curved to exit the pelvic region, wrap around theischial spine, and then lead the extension portion back into the pelvicregion to cause the extension portion to follow a tissue path that wrapsaround the arcus tendineus. The needle may then be removed by cuttingthe extension portion and the position of the extension portion may beadjusted by manipulation of portions of the extension portions that arelocated within the region of the pelvic floor.

Another example of a tool useful for placing an end portion of animplant transvaginally is a small three-dimensional looped needle suchas a Deschamps needle or a similar needle that can be introducedtransvaginally and that can then be used to pass an end portion of animplant through a tissue path in a region of the arcus tendineus, e.g.,at the level of the ischial spine. The tool can be considered to includea shaft and curved end portion that exist in three dimensions, with theshaft defining a longitudinal axis and the curved end portionoriginating from that axis and extending in two additional directions.In use, an end portion of an implant may be attached to a tip of acurved distal portion of the tool and passed through tissue of a regionof the arcus tendineus using the curved tip, transvaginally. Forexample, the curved distal end portion can be inserted transvaginally,and the handle can be rotated to rotate the curved distal end portion todefine a circular tissue path. The needle is curved to exit the pelvicregion, wrap around the arcus tendineus, and then lead the extensionportion back into the pelvic region to cause the extension portion tofollow a tissue path that wraps around the arcus tendineus. Optionally,according to certain exemplary methods, an additional surgical tool suchas a tunneler (e.g., the IVS Tunneler device available commercially fromTyco) can be inserted through an external incision (e.g., in aperirectal region) into the pelvic region, attached to a distal end ofthe extension portion, and then removed to lead the extension portion ofthe implant from the pelvic region to an external location.

An insertion tool or tools (e.g., Deschamps needle, or a small needle tobe manipulated by a standard operating room tool such as aneedle-driver) may engage a distal end of an extension portion of animplant by any useful engagement configuration. The engagement may be apermanent attachment or removable engagement, as desired.

According to certain embodiments of the invention, an insertion tool maybe attached to the implant at a distal end of an extension portion. Theterm “attach,” when used with regard to an end portion attached to aninsertion tool, will refer to engagement configurations that are noteasily removable, such as in an a manner designed to be used during asurgical implantation method and that would normally be removed only bycutting the extension portion of the implant, as opposed to releasing(e.g., un-threading) the implant from the insertion tool. Examples oftypes of attachment mechanisms include attachment by adhesive such as apressure sensitive adhesive, a structural adhesive, a two-part reactiveadhesive such as an epoxy adhesive, etc.; a tight knot using thread orsuture material that would not be easily untied during a surgicalinstallation procedure; a non-removable mechanical interaction betweenthe insertion tool and the implant portion such as by permanentlythreading the implant portion through an eye, eyelet, slot, or hole inthe tool so the end portion is not easily removed; a metal or plasticmechanical attachment such as a metal crimp at the end of the insertiontool; a polymeric attachment such as the use of a heat-shrinkablepolymeric sheath; attachment by a molding manufacturing process such asby injection molding or insert molding a plastic dilator or plasticneedle to a distal end of an extension portion; or any other mechanicalor adhesive type of permanent or semi-permanent attaching mechanism. Incontrast to an attachment, examples of types of removable engagementmechanisms include use of a loose knot that is easily untied during asurgical implantation procedure; an threaded dilator that removablyengages a threaded needle tip for easy engagement and dis-engagement bythreading and un-threading; and threading a distal end of an extensionportion through an aperture (e.g., eye or eyelet) of an insertion toolsuch as a needle or a curved distal portion of a tool.

Attaching an insertion tool (e.g., dilator, needle, etc.) to a distalend of an extension portion of an implant eliminates the need for asurgeon to make that connection, which reduces preparation of theimplant before or during surgery. The term “pre-attached” refers to animplant that includes an insertion tool attached to the implant as theimplant is commercially supplied to a surgeon. The pre-attached devicecan be manufactured for distribution and sale in a condition where onlyminimal preparation (if any at all) needs to be performed by the surgeonprior to surgical implantation. Minimal preparation may includemodification to size or shape of a portion of an implant (e.g., bytrimming), or removing loose material or loose pieces, but does notinclude a step of creating a direct attachment between a portion of theimplant and an insertion tool that will allow the portion of the implantto be placed or led through a tissue path.

Thus, embodiments of optional features of implants include an insertiontool that is attached e.g., pre-attached, or alternately is removablyengaged, at a far (i.e., distal) end of an extension portion of animplant, the tool being a structure that facilitates installation of theextension portion and implant by being of a size, shape, rigidity, andoverall design, to be capable of being used transvaginally to create atissue path that passes through tissue in a region of the arcustendineus, optionally and preferably wrapping around the arcustendineus. Examples of insertion tools that may be either attached orremovably engaged to a distal end of an extension portion include: a tip(distal end) of an extension portion that includes an attached rigid tipor “dilator,” optionally designed to cooperate and removably engage anend of another insertion tool for use together to create a tissue pathduring installation of an implant; a distal end of an extension portionthat is permanently attached to an insertion tool in the form of acurved distal needle portion and a shaft and proximal handle portion, oranother tool that can be inserted transvaginally to manipulate anextension portion of an implant during installation; and a distal end ofan extension portion that is permanently attached to an insertion toolsuch as a small needle that can be manipulated by a grasping tool suchas a needle driver, a forceps, or a pliers, etc., to manipulate anextension portion of an implant during transvaginal installation.

As one exemplary design, an implant may include a rigid (e.g., plastic),pushable dilator attached at a distal end of an extension portion, thedilator including a sharp tip at a first end and an opening at anopposing end, the opening designed and adapted to fit and removablyengage an end of an insertion tool such as a needle. The pushabledilator can be designed to fit the leading edge of an insertion toolsuch as a long needle having a handle and a distal portion with a tipadapted to fit and removably engage the pushable dilator. The dilatorcan engage the end of the insertion tool and may be pushed or pulled bythe insertion tool through tissue to either follow or produce a path inthe tissue, such as by rotating the handle to cause the distal portionto produce a curved tissue path. To produce a path in the tissue bypushing the dilator through the tissue, the pushable dilator can besufficiently sharp and rigid to pass through tissue when pushed usingthe needle (e.g., by rotating the needle).

A dilator (whether or not sufficiently sharp and rigid to be “pushable”)may be straight, or, according to certain specific embodiments of theinvention, may be curved in a manner that will improve manipulation ofthe dilator during a surgical procedure, e.g., in a manner that willfacilitate pushing the dilator through tissue to either produce orfollow a particular path of tissue. Optionally for use with methodsdescribed herein with a tissue path in the region of the arcustendineus, e.g., that wraps around the arcus tendineus, the externalsize and shape of a dilator may be suited to produce a tissue path thatcurves around the arcus tendineus, e.g., to exit the pelvic region bypassing through the obturator internus above the arcus tendineus, passbehind the arcus tendineus, and re-enter the pelvic region by passingthrough the levator ani at a location below the arcus tendineus. Thecurved dilator may be considered to be a two-dimensional form, in thatit the curvature of the dilator can define a two-dimensional plane.

As exemplary dimensions, a curved dilator may include a curved portionthat has a radius of curvature in the range from 0.5 to 1.5 centimetersand a length (measured as the arclength of the curved portion) of from 3to 5 centimeters. Also optionally, a curved shape or radius of a curveddilator can approximate or match a curved shape or radius of aninsertion tool (e.g., a curved distal portion of an insertion tool suchas a curved distal needle), and the curves of both a dilator and acurved distal portion of an insertion tool (e.g., needle) may be shapedto mach a tissue path that exits the pelvic area at a location near theischial spine and above the arcus tendineus by passing through theobturator internus muscle, continues around the arcus tendineus, andre-enters the pelvic region below the arcus tendineus by passing throughthe levator ani muscle. Thus, according to certain specific embodimentsof the use of a curved dilator, a curved dilator may be used with acurved needle (or other insertion tool) designed to fit within aninternal space at a hollow interior of the dilator, with the curvedinsertion tool and the curved dilator having a size and shape to definea tissue path passing around the arcus tendineus as described.

Further design features can relate to dilators and insertion tools thatinclude anti-rotation or alignment features, in particular with the useof a curved needle insertion tool and a curved dilator. An anti-rotationor alignment feature may be in the form of opposing and coordinatedstructural features of the dilator and a tip of an insertion tool (e.g.,needle) that together can: interconnect the dilator and tip of insertiontool to produce a desired alignment; prevent relative movement of thetwo pieces such as to prevent rotation of the dilator relative to thetool; or both. The alignment feature causes the dilator to be placed onthe needle in a specific alignment, which if the needle and dilator areboth curved as discussed above, causes the curve of the needle to bealigned with the curve of the dilator. An example of an alignment andanti-rotation feature is a keyed structure, as will be understood, thatincludes one or more inter-connecting surfaces and structures betweenthe dilator and the needle to allow the dilator to removably connect tothe needle when the two are properly aligned, and then to also preventrotation between the two when the two are connected. Other mechanicalstructures will also allow the dilator to be attached at an end of aneedle in a manner to produce a desired alignment and to preventrotation of the dilator relative to the needle.

An example of an implant having a curved (two dimensional) dilatoradapted to removably engage a three dimensional insertion tool thatincludes a curved (two dimensionally curved) distal end, is illustratedat FIG. 4. FIG. 4 schematically illustrates a prolapse support device(i.e., implant) 110 for treating vaginal prolapse, and insertion tool122. Implant 110 includes end (i.e., “extension”) portions 114 and 116connected to central support portion 120. Sutures (optional) 118 extendalong the lengths of each of extensions 114 and 116 and are connected tocentral support portion 118 and extensions 114 and 116. Rigid, curveddilators (in two dimensions) 112 are attached at each distal end ofextension portions 114 and 116.

Still referring to FIG. 4, insertion tool 122 (not to scale) includeshandle 124, shaft 126, and curved distal portion or “needle” 128.(Needle 128 includes a two-dimensional semi-circular form, and needle128 along with shaft 126 together are in three dimensions.) Needle 128is designed to engage dilators 112 by fitting inside of a dilator 112,e.g., inside of internal space 113 of each dilator, so that needle 128,by use of handle 124 of tool 122, can be used to push dilator 112through tissue by rotating handle 124; rotation of handle 124 about axis121, defined by handle 124 and shaft 126, rotates curved needle 128.Curved needle 128, shaft 126, and handle 124 are in three dimensions.Curved needle 128 is substantially a partial circle (e.g., half circle)that rotates to define a curved tissue path when handle 124 is rotatedabout longitudinal axis 121. Not shown is an optional protectiveflexible cover or sheaths that could extend over and contain extensionportions 114 and 116.

FIG. 4A shows an end view of tool 122, illustrating the half-circleshape of curved end 128, in view of handle 124. Curved end 128 includesan arclength of approximately 180 degrees, starting at a trailing end129 that connects to shaft 126, and extending to needle tip 127. FIG. 4Billustrates these features of tool 122 when connected to dilator 112,which is also attached to extension portion 116 of implant 110.

According to other embodiments of implants, distal ends of extensionportions can be attached or engaged with an insertion tool in the formof a needle or in the form a tool comprising a distal curved portion(e.g., needle) with attached shaft and handle, the former needle beingcapable of being manipulated using a separate tool such as aneedle-driver, forceps, or surgical pliers, the latter type of needlebeing capable of being manipulated using the handle, which will beexternal to the patient during a transvaginal surgical procedure. Thus,exemplary insertion tools include a small two-dimensional needle thatcan be manipulated during a transvaginal installation by anothersurgical tool; a tool having a distal portion comprising a curved needle(including a needle tip), shaft, and handle, that can be used directlyto install the implant; a dilator; or another type of tool that can beused to allow ends of an extension portion of an implant to betransvaginally installed in tissue as desired.

A specific example of an attached insertion tool can be a small needlethat can be securely attached at distal end of an extension portion ofan implant. The needle can be straight or curved (e.g., in twodimensions), and may preferably be sized to be manipulated using astandard surgical grasping instrument such as a pliers, forceps, orneedle-passer, and can be can be shaped and sized as desired, such aswith a curve and length that facilitate passing the needle through atissue path that wraps around an arcus tendineus. For example,pre-attached small, two-dimensional curved needle may include a curvedportion that has a radius of curvature in the range from 0.5 to 1.5centimeters and a length (measured as the arclength of the curvedportion) of from 3 to 5 centimeters. A distal end of an extensionportion of an implant may be attached at a trailing end of the needle.(Attachment at trailing end of a needle or at a leading end of a needlerefers to attachment that is within a distance of an end of a needle of25 percent of the total needle length.) The attached insertion tool(e.g., needle) can optionally include useful features that allowmanipulation and placement of the needle as desired to place the implantin a useful position. For example, a needle may include flat portionsthat allow easy grasping and manipulation with a standard needle-driver,forceps, or pliers. The needle may be plastic or metal. The curve andsizing of the needle can be shaped to match a tissue path that exits thepelvic area at a region of the arcus tendineus, wraps around an arcustendineus, and re-enters the pelvic region.

FIG. 5 schematically illustrates a prolapse support device for treatingvaginal prolapse, the device including attached insertion tools in theform of small curved two-dimensional needles having length L and radiusof curvature R. Implant 130 includes end portions 134 and 136 connectedto central support portion 140. Sutures 138 extend along the lengths ofeach of extensions 134 and 136 and are connected to central supportportion 140 and extensions 134 and 136. Attached insertion tools 132, inthe form of small curved two-dimensional needles, are attached to distalends of extensions 134 and 136. Length L (the arclength of each needle)can be as desired, e.g., from 3 to 5 centimeters. Curvature of radius Rcan be as desired, e.g., from 0.5 to 1.5 centimeters. Insertion tools132 are designed to be transvaginally manipulated by a tool such as aneedle driver, surgical pliers, surgical forceps, etc., duringinstallation of implant 130, e.g., according to methods describedherein.

FIG. 6 schematically illustrates a prolapse support device that includesan implant having two pre-attached insertion tools. Implant 142 includesend portions 144 and 148 connected to central support portion 150.Sutures 146 extend along the lengths of each of extension 144 and 148and are connected to central support portion 150 and extensions 144 and148. Insertion tools 152 include shaft 156, handle 154, and curveddistal portion, needles 158, each needle being attached at a distal endof extension portions 144 and 148.

Each tool 152 includes handle 154, shaft 152, curved needle end 158 at adistal end of shaft 152, and needle tip 160. Tips 160 are leading edgesof curved needles 158, and each is attached to a distal end of anextension portion 144 or 148. With this design, a surgeon receives theimplant product 142 with tools 152 attached; the surgeon installsimplant 142, transvaginally, with support portion 150 being attached tovaginal tissue. The surgeon uses each of tools 152 to place ends ofextension portions 146 and 148 bilaterally through tissue in the regionof the arcus tendineus, e.g., near the ischial spine. Curved distal end158 of each tool 152 allows the surgeon to lead a distal end of eachextension portion 144 and 148 around the outside of the arcus tendineusand back into the pelvic region at a location below the arcus tendineus,e.g., through the iliococcygeous muscle. This placement can be performedby movement or each tool 152, the movement including rotation of handle154 about an axis that includes shaft 156, to rotate curved distal end158, also about the axis of shaft 156. This can pass tip 160 and adistal end of an extension portion around an arcus tendineus, with thedistal end exiting and re-entering the pelvic region. The surgeon canthen disconnect the end of each extension portion from each tip 160 bycutting the extension portions 144 and 148 near tip 160 of each tool152. After cutting the end of each extension portion 144 and 148, theneedle and tool can be removed from the pelvic region and each extensionportion 144 and 148 can be manipulated to adjust and position theextension portion and implant 142 as desired to support vaginal tissueconnected to support portion 150. This can optionally include producinganother tissue path to an external location and leading the end of eachextension portion 144 and 148 through that tissue path to the externallocation in the perirectal region such as is illustrated in FIGS. 7 and9. Or, each extension portion 144 and 148 can be severed and severedends can be left at locations within the pelvic floor region withoutleading extension portions 144 and 148 to an external incision.

According to particular embodiments, a kit according to the inventioncan include an implant and a tool or multiple tools for installation,e.g., with the insertion tool being either removably enjoyable orattached (e.g., permanently) at a distal end of an extension portion ofthe implant. Referring to FIG. 10, a kit is illustrated (not to scale)to include a mesh tape implant (220) for supporting vaginal tissue,insertion tool 200 comprising a distal end having a curved needle, andtunneler device 230. FIG. 4 includes an illustration of an exemplaryinsertion tool useful for installing a mesh to pass above the arcustendineus. Tool 200 (Deschamps Needle) of FIG. 10 is shown as a sideview. Tunneler device 230 (e.g., IVS tunneler) includes hollow trocar232 and flexible plastic plug 234, as are known. Tool 200 includeshandle 202, shaft 204 having a proximal end connected to handle 202,shaft 204 connected at a distal end to curved end (e.g., “needle”) 208.The diameter of the curved needle portion 208 is shown to be 1 inch,meaning that the radius of curvature is about 0.5 inch; other sizes ofthe curve may also be useful. Curved end 208 defines a two-dimensionalcurve, and the combination of curved end 208 with shaft 204 together arein three dimensions.

Still referring to FIG. 10, tip 210 of curved end 208 can be adapted toallow an end of a mesh implant to be held (removably engaged) by tip210. Tip 210 can also be sharpened to allow the tip to be passed throughtissue. Tool 200 may be a Deschamps Needle or similar structure having ahandle, shaft, and a curved portion at the end of the shaft. A distalend (222) of mesh implant 220 can be attached to the end. (tip) ofcurved portion of curved needle 208 of tool 200. During use, a surgeoncan make a vaginal incision to allow transvaginal insertion of curvedend 208 of tool 200, with a distal end 222 of implant 220 attached atthe end (tip) 210 of curved portion 208. Center portion 224 of implant220 is attached to the vaginal apex to provide support, and each of ends222 can be extended bi-laterally through tissue paths that pass througha region of the arcus tendineus, such as through the obturator internusmuscle just above the arcus tendineus at the level of the ischial spine.Tunneler device 230 can be used to separately retrieve each of ends 222of mesh implant 220 and draw ends 222 through a tissue path to anexternal incision, e.g., an external incision in the perirectal region.

The invention contemplates placement of an implant, as described, totreat a condition of vaginal tissue prolapse, by use of transvaginalsurgical methods. The present description identifies certaincombinations of implants, tools, and procedures, but as will beunderstood based on the present description, many different variationson the present methods, tools, and procedures will be useful, as willcombination of implant, tool, and procedure.

According to one embodiment of the invention, using a curved Deschampsor similar needle, an extension portion of an implant can be insertedtrough a vaginal incision and a central portion of the implant can beattached to vaginal tissue that is to be supported. Two opposing tissuepaths are created from the vaginal tissue to regions of the arcustendineus, e.g., above the arcus tendineus at a level of the ischialspine, one on each side of the pelvic region. Each end (“extension”)portion of the implant can then be extended through a tissue path andabove or below the arcus tendineus, such as through the obturatorinternus muscle or iliococcygeus, optionally also as close to theischial spine as possible, using the curved needle. The end portion ofthe implant is passed around the outside of the white line and passedback into the pelvic region either below or above the white line, eitherthrough obturator internus or the iliococcygeus muscle. This location ofthe mesh end is illustrated in FIGS. 7, 7A, 8, 9, and 9A. The end of themesh thus passes back into the pelvic floor and can be subsequentlypassed through a tissue passage that is created below that pelvic floorlocation, to an incision made external to the rectal region at eachbuttock (e.g., 2 to 3 centimeters lateral and 2 to 3 centimetersposterior to the anus).

Methods of the invention can involve placement of an implant andextension portion using a system as shown in FIG. 4. Distal curvedportion 128 of tool 122 is engaged with interior space 113 of dilator112, and tool 122 can be inserted transvaginally and rotated to producea tissue path in a region of the arcus tendineus. Tool 122 then engagesthe second dilator to make a second opposite tissue path,transvaginally. Each extension portion can be adjusted as desired, andtissue support portion 120 can be attached to vaginal tissue andadjusted. In alternate embodiments that also use tool 122 and implant110, a tissue path can be produced transvaginally using tool 122, as afirst step, then dilator 112 can be engaged with distal end 128 afterformation of the tissue path. After engaging dilator 112 and distal end128, tool 122 can be counter-rotated to cause the dilator to be pulledback through the tissue path. The extension portion and tissue supportportion 120 can then be adjusted.

Methods of the invention include variations that advantageously do notrequire any external incision such as two incisions perirectalincisions. Again entering the pelvic region transvaginally, e.g., usinga curved Deschamps Needle (or alternately a small curved needle as shownin FIG. 5), an extension portion of an implant can be inserted through avaginal incision and a central portion of the implant attached tovaginal tissue that is to be supported. Opposing tissue paths arecreated starting at the vaginal tissue and extending to oppositelocations at regions of the arcus tendineus, e.g., above the arcustendineus at the level of the ischial spine. Each end portion of theimplant can then be extended through one of the opposing tissue pathsand through obturator internus muscle, as close to the ischial spine aspossible. The end portion of the implant is passed (wrapped) around theoutside of the white line and passed back into the pelvic region belowthe white line, through the iliococcygeus muscle. The end of the meshthus passes back into the pelvic floor. Instead of passing the endportion through a tissue passage that is created between that pelvicfloor location and an external incision (e.g., in the rectal region ateach buttocks), however, the end portion can be cut off, e.g., withinthe pelvic region, and the severed end left in that internal position ofthe anatomy. The end portion may optionally be secured using a suture.The severed end portions of the implant will remain in place within thedefined tissue path and will the implant will support the vaginaltissue.

FIG. 7 illustrates an installed mesh tape implant 220 (e.g., as shown inFIG. 10) that includes a central support portion (224) secured to tissueof the vaginal apex. Each of two distal ends 222 of extension portions221 of implant 220 extends bilaterally to pass above each arcustendineus (6), near each ischial spine (8). Each of the two distal ends222 of extension portions 221 of implant 220 then passes thorough theiliococcygeus muscle (not shown), below the white line (6), back to thepelvic floor region and then through two tissue paths, each pathextending to an external incision (70) in the perirectal region.

FIG. 7A illustrates an alternate embodiment of an installed mesh tapeimplant 220 (e.g., as shown in FIG. 10) that includes a central supportportion 224 secured to tissue of the vaginal apex. Each of two extensionportions 221 of implant 220 extends bilaterally to pass above each arcustendineus (6) near each ischial spine (8). Each of the two extensionportions 221 of implant 220 then passes thorough the iliococcygeusmuscle (not shown) below the white line (6) and back to the pelvic floorregion. Each of the two extension portions 221 of implant 220 is severedto create an end of the extension portion located within the pelvicfloor and extension portions 221 are not extended through tissue pathsto any external incision.

FIG. 8 illustrates another view of an installed mesh tape implant, suchas implant 220 shown in FIG. 10. FIG. 8 looks in a direction down intothe pelvic cavity, such as from a position in the abdomen. For referenceare shown pubic bone 80, bladder 82, obturator internus muscle 84, andiliococcygeous muscle 86. In FIG. 8, a central support portion 224 of amesh implant 220 is secured using sutures (not shown) to tissue of theapex of vagina 2. Each of the two distal ends 222 of extension portions221 of implant 220 are extended bilaterally and passed through opposingtissue paths above each arcus tendineus (6), near each ischial spine(8), e.g., through obturator internus muscle 84. The far portions anddistal ends 222 of the extension portions 221 of implant 220 are notshown in FIG. 8. These far portions of extension portions 221 may extendthrough alternate tissue paths, such as back into the pelvic region bypassing through iliococcygeous muscle 86 at a location below arcustendineus 6, then either severed at a location within the pelvic floorregion or passed to an external incision.

FIG. 9 illustrates still another view of an exemplary installed meshtape implant 220 that includes central support portion 224 secured totissue of the vaginal apex. FIG. 9 is a view from exterior of thepatient, facing the vagina and anus (90). Each of two distal ends 221 ofthe implant 220 extends bilaterally to pass above each arcus tendineus 6near each ischial spine 8, around the arcus tendineus 6, and thenthorough the iliococcygeus muscle (not shown) below the white line 6 andback to the pelvic floor region. From there each extension portion 221passes through a tissue path extending to an external incision (70) inthe perirectal region.

FIG. 9A illustrates an alternate embodiment of an installed mesh tapeimplant that includes a central support portion 224 secured to tissue ofthe vaginal apex. FIG. 9 is a view from exterior of the patient, facingthe vagina and anus (90). Each of two extension portions 221 of implant220 extends bilaterally to pass above each arcus tendineus 6 near eachischial spine 8. Each of the two extension portions 221 of the implant220 then passes around arcus tendineus 6 and then through theiliococcygeus muscle (not shown) below the white line 6 back to thepelvic floor region. Each of the two ends of the implant is severed tocreate an end that remains internally within the pelvic floor, and theend portions are not extended through tissue paths to external incisionsin the perirectal region.

The invention claimed is:
 1. A method of supporting posterior vaginaltissue, the method comprising: providing an implant comprising a tissuesupport portion and an extension portion extending from the tissuesupport portion, creating an incision, contacting the support portionwith posterior vaginal tissue, producing a tissue path that passesbetween a position of the tissue support portion and a region of anarcus tendineus, wherein the region of the arcus tendineus comprises aregion from 2 centimeters above the arcus tendineus to 2 centimetersbelow the arcus tendineus and between an ischial spine and a distance 3centimeters anterior to the ischial spine, wherein the tissue pathpasses below the arcus tendineus through an iliococcygeus muscle, wrapsaround the arcus tendineus to a location above the arcus tendineus,through an obturator internus muscle, and back to a region of the pelvicfloor, and extending the extension portion through the tissue path. 2.The method of claim 1, comprising treating a condition selected from thegroup consisting of enterocele, rectocele, apical prolapse, and vaultprolapse.
 3. The method of claim 1, wherein the region of the arcustendineus further includes the region between the arcus tendineus and 1centimeter above the arcus tendineus, and between the ischial spine anda distance 1 centimeter anterior to the ischial spine.
 4. The method ofclaim 1, wherein a distal end of the extension portion is sutured to thepelvic floor.
 5. The method of claim 1, wherein the tissue path does notextend to an external incision.
 6. The method of claim 1, wherein theextension portion is passed through an external incision.
 7. The methodof claim 1, wherein an incision is a perirectal incision.
 8. A pelvicimplant assembly comprising an implant and an insertion tool, theimplant comprising a tissue support portion, elongate extension portionsextending from the tissue support portion, and a dilator located at adistal end of each elongate extension portion, the dilator comprising acurve having a radius of curvature in the range of from 0.5-1.5centimeters, a sharp tip at a distal end, and an opening at a proximalend, the opening designed and adapted to fit and removably engage adistal end of the insertion tool.
 9. The pelvic implant assembly ofclaim 8, wherein the implant is a mesh strip.
 10. The pelvic implantassembly of claim 8, wherein the implant has a length sufficient toextend from a region of an arcus tendineus on a first side of a patientto a region of an arcus tendineus on a second side of the patient. 11.The pelvic implant assembly of claim 8, wherein the tissue supportportion has a width greater than a width of the extension portions. 12.The pelvic implant assembly of claim 8, wherein the implant includes aremovable sheath that can cover one of the extension portions.
 13. Thepelvic implant assembly of claim 8, wherein the insertion tool comprisesa handle and a longitudinally extending shaft, wherein a proximal end ofthe extending shaft extends from the handle and a distal end of theextending shaft comprises a radius of curvature.
 14. The pelvic implantassembly of claim 13, wherein the dilator has a radius of curvature thatmatches the radius of curvature of the insertion tool.
 15. The pelvicimplant assembly of claim 13, wherein the insertion tool is configuredto push the dilator through tissue.
 16. The pelvic implant assembly ofclaim 8, wherein the insertion tool comprises a substantially straightshaft.
 17. The pelvic implant assembly of claim 8, wherein the insertiontool comprises a curved distal end, the curved portion comprising aradius of curvature in the range of from 0.5-1.5 centimeters.
 18. Apelvic implant assembly comprising an implant and a first and secondinsertion tools, the implant comprising a tissue support portion, afirst elongate extension portion extending from an end of the tissuesupport portion and a second elongate extension portion extending froman opposite end of the tissue support portion, and a first dilatorlocated at a distal end of the first extension portion and a seconddilator located at a distal end of the second extension portion, eachdilator comprising a sharp tip at a distal end and an opening at aproximal end, the opening designed and adapted to engage a distal end ofthe first and second insertion tools; and wherein each insertion toolcomprises a shaft, a handle, and a curved distal end, the curved distalend comprising a radius of curvature in the range of from 0.5-1.5centimeters, and the curved distal end being capable of engaging one ofthe dilators and pushing the dilator through tissue.
 19. The pelvicimplant assembly of claim 18 comprising a first suture extending along alength of the first extension portion and a second suture extendingalong a length of the second extension portion.